Cemetery Island in Barren River Lake is a historical site featuring submerged foundations from when the lake was flooded. The rocky perimeter of the island functions as an artificial reef, offering an interesting topography for exploration. Divers and snorkellers can expect depths ranging from 2 to 15 metres, with an average depth of 3 metres. Access is by boat only, as the site is located 2414 metres from the shore. Conditions are variable, with mild currents and visibility between 3 and 9 metres. A thermocline may be present, affecting water temperatures at different depths. Hazards include boat traffic, potential entanglement, and low visibility. This site is suitable for intermediate divers.

Clifty Creek Swimming Hole is a freshwater site located on Barren River Lake, characterised by dramatic limestone cliffs and a rocky bottom. The site is suitable for beginners, offering shore access for both diving and snorkelling. Depths range from 1 to 20 metres, with an average depth of 8 metres. Divers and snorkellers should be aware of thermoclines, as cooler water layers exist below 4.5 to 9 metres and again near 18 metres. Visibility typically ranges between 5 and 9 metres. Hazards include boat traffic, cold water, entanglement risks, and low visibility. Typical dive times are approximately 120 minutes.

Seventy-Six Falls at Barren River Lake offers a freshwater snorkeling experience at the base of a 38-foot waterfall. The topography consists of submerged rock slabs and fallen trees within the basin. Depths reach up to 12 metres, though conditions vary. The site is subject to strong currents and surf, making it suitable for intermediate snorkelers. Water temperatures are often cooler than in the surrounding lake. Access is available via both shore and boat entries. On-site facilities include parking, showers, and changing rooms for visitors.

Caney Fork Island Beach is a freshwater snorkeling site located on Barren River Lake. Accessible only by boat, the site features a gentle beach slope that leads into shallow waters. Snorkelers can expect depths ranging from 1 to 5 metres, with an average depth of 3 metres. Conditions are generally mild, though visibility varies between 3 and 9 metres. Divers and snorkelers should remain aware of boat traffic and potential entanglement hazards in the area. The site is suitable for beginners looking for a relaxed experience, with typical sessions lasting around 45 minutes. Water temperatures at the surface during summer months range from 24 to 29 degrees Celsius.

Holmes Bend Swimming Beach is located at the southern end of Barren River Lake. This site features artificial reef structures submerged within the freshwater environment, providing a distinct topography for divers and snorkellers. Entry is via the shore. Conditions vary, and water temperatures can be cold in early spring, reaching approximately 60°F in March, which necessitates appropriate thermal protection. The site is suitable for beginners, though users should remain aware of boat traffic in the area. Facilities available at the location include parking, toilets, showers, a rinse station, a cafe, and boat charter services.

Diablo East Cove is a freshwater site in the United States near Lake Cumberland, offering a mix of artificial and natural reef structures. Snorkellers can explore submerged trees and man-made structures within the shallow perimeter of the cove. The site is protected from wind and chop, which helps maintain visibility between 3 and 9 metres. Depths range from 1 to 30 metres, with an average of 5 metres. Divers and snorkellers should be aware of boat traffic, potential entanglement hazards, and a thermocline typically found between 4.5 and 9 metres. Entry is possible from both shore and boat, with the site located 50 metres from the shore.

Green River Lake Tailwater offers a unique riverine environment located directly below the dam. The site is characterised by rocky shoals and riffles that create a dynamic freshwater habitat. Divers should be prepared for moderate currents and notably cool water temperatures year-round due to the dam releases. Entry is via the shore, and the site includes facilities such as parking, toilets, showers, changing rooms, and a rinse station. Due to the presence of boat traffic, strong currents, and cold water, this site is best suited for intermediate divers. Snorkelling is possible but rated as 2/5.

Dam Area Overlook Rocky Banks is a freshwater snorkel site located at Barren River Lake. The topography features steep rocky bluffs that extend into the water, creating submerged rock walls and crevices to explore. The site reaches depths between 2 and 10 metres, with an average depth of 5 metres. Snorkelers can access the site from either the shore or by boat, with the main area located approximately 50 metres from the bank. Conditions vary, with moderate currents present. Due to the proximity of the dam, snorkelers should remain aware of boat traffic in the area. Facilities including parking and toilets are available for visitors.